Virtualization fault tolerance method and equipment

Abstract

The invention aims to provide a virtualization fault tolerance method and device, and the method comprises the steps of building at least one main virtual machine and a virtual hard disk of the main virtual machine on a first physical machine through a virtual machine manager, correspondingly building at least one standby virtual machine on a second physical machine, and enabling the virtual harddisk of the main virtual machine to be copied to the second physical machine; after the main virtual machine is started and is in the fault-tolerant mode, starting the standby virtual machine, openingan external network interface of the main virtual machine, and meanwhile, blocking the external network interface of the standby virtual machine; synchronizing the state information of the main virtual machine to the standby virtual machine; if it is detected that the first physical machine and / or the main virtual machine breaks down, performing switching from the main virtual machine to the standby virtual machine, opening an external network interface of the standby virtual machine, operating the standby virtual machine with the synchronized latest state information, so that the hardware difference is shielded by applying the fault tolerance technology to virtualization, the performance is guaranteed, and meanwhile, the applications deployed in each server also have extremely high availability.

Description

technical field [0001] The present application relates to the computer field, in particular to a virtualization fault-tolerant method and device. Background technique [0002] In the existing technology, improving the availability of applications has always been a goal that needs to be considered in the construction of information infrastructure. However, the reality is that the availability of many applications requires additional development components to expand their reliability due to their architectural limitations. Ensure that its usability meets certain requirements. Traditional application high-availability technologies include active-standby, active-active, and cluster technologies, but these can only be achieved through application transformation. For many stand-alone applications such as industrial field applications and embedded applications, if enterprises must ensure the availability of these applications In order to avoid loss of production business, it is ne...

AI Technical Summary

Problems solved by technology

As for the hardware fault-tolerant technology, because the CPU lock-step technology is used to ensure that the running states of the two servers are consistent, there will be certain defects in compatibility and performance. For example, the CPU lock-step technology is equivalent to Debug switch, so that the running state of the CPU can be copied to the external CPU, but in this way, part of the computing power of the CPU is consumed in the state copy, resulting in a certain loss of CPU, memory and other performance; another example, the CPU lockstep technology requires It can only be supported on specific CPU models and motherboards, and there are requirements for hardware, so users cannot use their own servers for deployment; another example, only one operating system can be deployed in hardware fault-tolerant products, but it is difficult for applications on it to use all of its hardware performance, thus resulting in a waste of resources; for another example, hardware fault-tolerant products often use X86 servers, which can not be used in many scenarios using ARM servers, so the availability of these ARM server applications cannot meet the requirements

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